Drive AZURE2, the Notre Dame multichannel R-matrix code of Azuma et al. (Phys. Rev. C 81, 045805 (2010); GPL-3.0). Write, run and verify .azr configuration files for low-energy charged-particle reactions in nuclear astrophysics: radiative capture, elastic scattering, resonance and subthreshold contributions, external (direct) capture normalised by ANCs, S-factor extrapolation to stellar energies, and reaction rates. Use for 跑AZURE2, AZURE2 input, .azr, R-matrix, R矩阵, 天体物理S因子, astrophysical S factor, direct capture, external capture, ANC, 渐近归一化系数, subthreshold state, CNO cycle capture, resonance analysis.
